{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9647174","patent":{"patent_number":"US-9647174","title":"Optoelectronic semiconductor chip","assignee":null,"inventors":[],"filing_date":"2016-04-14T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H01L","H01L"],"num_claims":4,"abstract":"An optoelectronic semiconductor chip includes a semiconductor layer sequence having an active layer that generates radiation and at least one n-doped layer adjoining the active layer, the semiconductor layer sequence is based on AlInGaN or on InGaN, one or a plurality of central layers composed of AlGaN each having thicknesses of 25 nm to 200 nm are grown at a side of the n-doped layer facing away from a carrier substrate, a coalescence layer of doped or undoped GaN having a thickness of 300 nm to 1.2 μm is formed at a side of the central layer or one of the central layers facing away from the carrier substrate, a roughening extends from the coalescence layer as far as or into the n-doped layer, a radiation exit area of the semiconductor layer stack is formed partly by the coalescence layer, and the central layer is exposed in places."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optoelectronic semiconductor chip","description":"An optoelectronic semiconductor chip includes a semiconductor layer sequence having an active layer that generates radiation and at least one n-doped layer adjoining the active layer, the semiconducto","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9647174","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9647174","citation_suggestion":"Patentable. \"Optoelectronic semiconductor chip\" (US-9647174). https://patentable.app/patents/US-9647174","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9647174","json":"https://patentable.app/api/llm-context/US-9647174","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:04:32.981Z"}